CN209253975U - A kind of portable filter-fan unit - Google Patents
A kind of portable filter-fan unit Download PDFInfo
- Publication number
- CN209253975U CN209253975U CN201821344955.9U CN201821344955U CN209253975U CN 209253975 U CN209253975 U CN 209253975U CN 201821344955 U CN201821344955 U CN 201821344955U CN 209253975 U CN209253975 U CN 209253975U
- Authority
- CN
- China
- Prior art keywords
- filter
- mask
- ontology
- fan unit
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides a kind of portable filter-fan unit, is installed in a mask with separating formula, has an inner space between user on the inside of mask.Portable filter-fan unit includes an ontology and a filter assemblies, ontology includes a connecting structure, ontology is incorporated into the periphery of mask by connecting structure detachable type, and ontology is equipped with an air inlet portion and an outlet portion, air inlet portion is set to the outside of mask, and outlet portion is set to the inside of mask and is connected to inner space；Filter assemblies are set to body interior, and between air inlet portion and outlet portion, and filter assemblies extract the outside air of mask, and enter ontology by air inlet portion and be filtered, and filtered air passes through outlet portion again and is expelled to inner space；Whereby, user can the direct air after breath in the interior space, to achieve the effect that health breathing.
Description
Technical field
The utility model is installed on the portable mistake of mask about a kind of ventilation device more particularly to a kind of detachable type
Filter ventilation device.
Background technique
Nowadays, in the universal environment of industrialization and the vehicles, the exhaust gas that factory is discharged with the vehicles, so that ring
Border air pollution is increasingly serious, and dust or suspended particulates (PM:Particulate Matter) long-term suction body in air
It is interior, easily cause the health hazards such as allergy, asthma, cardiovascular disease and respiratory disorder；Therefore, many common people are in outgoing Shi Douhui
At any time with wearing masks, to avoid the impurity in excessive sucking air, the health of oneself is protected.
In general, presently commercially available mask primary structure is a cover and is connected to two stretch cords of cover two sides,
In, cover is used to cover the nose and mouth of user, can obstruct mouth and nose and directly contact with external environment, and cover is filled with
Filtering material, therefore when outside air enters cover, the dust in air can be attached in cover, reach big in air filtering
The purpose of partial impurity.
But the filter effect of mask is limited, and can not effectively filter absorption suspended particulates, thus still there is harm
The problem of health, is easily reduced use moreover, wearing mask is easy to produce sultry and uncomfortable problem for a long time instead
Person dresses the willingness of mask.
According to the defect of above-mentioned traditional mask, dealer has developed a kind of air filter, such as TaiWan, China patent the
No. M558885, a kind of air purifier that can provide mask air inlet is disclosed, there is a shell, a fan component and a bite
Cover, wherein fan component is set in shell, and fan component is equipped with a fan base, a fan, a power supply and a fan filter material,
Fan component is set to be evacuated the impurity of air filtering, and mask is connected to shell by a connecting pipe, makes filtered air
It can be directly transferred in mask, achieve the effect that have a breath of fresh air.
But aforementioned air clarifier, need to be fixed on the user's body by shell when actually wearing, and just can reach and took action
The effect of filter, thus it is extremely inconvenient to cause user to wear with oneself；Furthermore aforementioned air clarifier, which discloses mask, need to pass through company
Siphunculus is connected to shell, if mask is lost or damaged, general commercially available traditional mask can not be arranged, need ancillary cost to order instead
Purchase meets the mask of installing connection pipe size, and being easy to cause, which reduces user, dresses the willingness of air purifier.
Utility model content
In order to solve the defect of traditional mask and aforementioned air clarifier, the utility model provides a kind of portable filtering
Ventilation device has the effect of being convenient for carrying, and user can be by the portable filter-fan unit of the utility model at any time
Be incorporated into the periphery of general mask with separating formula, can air on the outside of peace and quiet filter face mask, and filtered air is arranged
Out to mask inside, user's effect having a breath of fresh air is provided.
In order to achieve the above objectives, the utility model provides a kind of portable filter-fan unit, is installed in separating formula
One mask, on the inside of mask there is an inner space between user, portable filter-fan unit includes an ontology and a filtering
Component.Ontology has a connecting structure, and ontology is incorporated into the periphery of mask by connecting structure detachable type, and ontology is equipped with
One air inlet portion, an outlet portion and an accommodating space, air inlet portion are set to the outside of mask, and outlet portion is set to the inside of mask and connection
In inner space, accommodating space is connected to air inlet portion and outlet portion；Filter assemblies are installed in the accommodating space of ontology, and be set into
Between gas portion and outlet portion, filter assemblies are equipped with a filter element and a pumping cells, and the side of filter element is set to air inlet portion, mistake
The other side for filtering unit is equipped with pumping cells, makes filter element between air inlet portion and pumping cells, and pumping cells extract mask
Outside air, and ontology is entered by air inlet portion and flows through filter element, and filtered air passes through outlet portion again and is discharged
To inner space.
In one of them embodiment, connecting structure elasticity is clamped on the periphery of mask.
In one of them embodiment, connecting structure includes that one first folder portion, one second folder portion and a clamping opening, clamping opening are set to
Between first folder portion and the second folder portion, the first folder portion is held on the inside and outside two sides of mask with the second folder portion.
In one of them embodiment, the first folder portion is convexly equipped with multiple clip tooths in clamping opening, and clip tooth is connected to the outer of mask
Side.
In one of them embodiment, pumping cells are equipped with one and extract space and an exhaust pipe, and it is single that exhaust pipe is set to pumping
The side of member, and exhaust pipe is connected to and extracts between space and outlet portion.
In one of them embodiment, filter assemblies are set to the side of connecting structure far from mask.
In one of them embodiment, filter assemblies are set in connecting structure, and are located relatively at the outside of mask.
In one of them embodiment, pumping cells can be mini-fan or air blower, and filter assemblies further include being electrically connected
Connect a power supply unit of pumping cells, electric power needed for power supply unit provides pumping cells work.
In one of them embodiment, filter element is equipped with one first filter core and one second filter core, the side of the first filter core
Set on air inlet portion, the second filter core is connected to the first filter core other side far from air inlet portion, and pumping cells are connected to the second filter core, make
Second filter core is set between pumping cells and the first filter core.
In one of them embodiment, the thickness of the second filter core is greater than the thickness of the first filter core.
Whereby, the utility model has the effect of being convenient for carrying, and user can combine while ontology is separated to formula at any time
In mask periphery, enable the air on the outside of the peace and quiet filter face mask of filter assemblies, and filtered air is expelled to inside
Space provides user's effect having a breath of fresh air.
Furthermore user can elasticity be clamped on mask immediately by connecting structure, and the clip tooth of connecting structure is also reachable
To preventing ontology from falling off the purpose of mask, to be promoted, ontology can be consolidated and Fast Installation is in the mask the effect of.
Detailed description of the invention
Fig. 1 is the use state diagram of the utility model first embodiment.
Fig. 2 is the diagrammatic cross-section of the utility model first embodiment, indicates that power supply unit is set to the first folder portion, and be evacuated
Unit and filter element are set to the side of connecting structure far from mask.
Fig. 3 is the diagrammatic cross-section of the utility model second embodiment, indicates that filter assemblies are set to group binding far from mask
The side of structure.
Fig. 4 is the diagrammatic cross-section of the utility model 3rd embodiment, indicates that pumping cells and filter element are set to first
In folder portion, and power supply unit is connected to the side of pumping cells far from mask.
Fig. 5 is the diagrammatic cross-section of the utility model fourth embodiment, indicates that filter assemblies are set in the first folder portion, and right
The outside of mask should be located at.
Fig. 6 is the utility model use state cross-sectional view, indicates that filtered cleaned air enters in baffle space.
Fig. 7 is the use state diagram that the utility model is installed in mask another location.
Description of symbols
1, mask；13, outlet portion；2, outside；14, accommodating space；3, inside；20, filter assemblies；
4, periphery；21, filter element；5, inner space；211, the first filter core；10, ontology；
212, the second filter core；11, connecting structure；22, pumping cells；111, the first folder portion；
221, fan；112, the second folder portion；222, space is extracted；113, clamping opening；223, exhaust pipe；
114, clip tooth；23, power supply unit；12, air inlet portion；24, unit is started switch.
Specific embodiment
For ease of illustration of the utility model central idea represented in above-mentioned one column of utility model content, now with specific
Embodiment expression.Various difference objects are described in ratio, size, deflection or the displacement for being suitable for explanation in embodiment, and
Non- to be drawn in the ratio of actual component, conjunction is first chatted bright.
Fig. 1 to Fig. 7 is please referred to, the utility model provides a kind of portable filter-fan unit, is installed in separating formula
One mask 1, in the present embodiment, the type of mask 1 can be general commercially available cotton mask, active carbon mask or nonwoven fabric mouth
Cover, but not limited to this；When mask 1 is worn on the face of user, make to have inside one between the inside 3 of mask 1 and user
Space 5.Portable filter-fan unit includes an ontology 10 and a filter assemblies 20.
Ontology 10, appearance generally present it is rectangular-shaped, ontology 10 have a connecting structure 11, wherein the utility model
Mainly not influence user's sight as criterion, ontology 10 can directly be incorporated into the week of mask 1 with separating formula by connecting structure 11
Edge 4, in this present embodiment, 11 elasticity of connecting structure are clamped on the periphery 4 of mask 1；Referring to Fig. 1, ontology 10 is set to mask 1
Lower edge；Referring to Fig. 7, ontology 10 also may be disposed at 1 arranged on left and right sides of mask.Furthermore, it is understood that connecting structure 11 has one
First folder portion 111, one second folder portion 112 and a clamping opening 113, clamping opening 113 are set between the first folder portion 111 and the second folder portion 112, and
First folder portion 111 is convexly equipped with multiple clip tooths 114 in clamping opening 113, is clamped on mask 1 in the utility model operation connecting structure 11
When, the first folder portion 111 and the second folder portion 112 can be held on the inside 3 and outside 2 of mask 1, and each clip tooth of the first folder portion 111
114 can be connected to the outside 2 of mask 1, make to be located in clamping opening 113 by clamping 1 part of mask, in this way, can reach
Prevent ontology 10 from falling off the purpose of mask 1, ontology 10 can consolidate and Fast Installation is in mask 1 the effect of to be promoted.
In addition, ontology 10 is equipped with an air inlet portion 12, an outlet portion 13 and an accommodating space 14, air inlet portion 12 and outlet portion 13
Opening or perforation with open shape, wherein air inlet portion 12 is set to the outside 2 of mask 1, for being connected to outside air, outlet portion
13 are set to the inside 3 of mask 1 and are connected to inner space 5, and outlet portion 13 is installed in the second folder portion 112, and accommodating space 14
In the inside of ontology 10, and accommodating space 14 can be connected to air inlet portion 12 and outlet portion 13.
Filter assemblies 20 are installed in the accommodating space 14 of ontology 10, and are set between air inlet portion 12 and outlet portion 13, filtering
Component 20 is equipped with a filter element 21, a pumping cells 22, a power supply unit 23 and one and starts switch unit 24, filter element 21
Side be in close proximity to air inlet portion 12, the other side neighbour of filter element 21 is equipped with pumping cells 22, is located at filter element 21 into gas
Between portion 12 and pumping cells 22, wherein filter element 21 is equipped with one first filter core 211 and one second filter core 212, in the present embodiment
In, the thickness of the second filter core 212 is greater than the thickness of the first filter core 211, and the side of the first filter core 211 is connected to air inlet portion 12, the
Two filter cores 212 are connected to 211 other side of the first filter core far from air inlet portion 12, and pumping cells 22 are connected to the second filter core 212, make
Second filter core 212 is set between pumping cells 22 and the first filter core 211, and the effect of double filtration air is reached so as to filter element 21
Fruit.
Pumping cells 22 can be mini-fan or air blower, and pumping cells 22 are equipped with a fan 221, one and extract space
222 and an exhaust pipe 223, the rotation of fan 221, which is set to, to be extracted in space 222, and exhaust pipe 223 is set to the side of pumping cells 22,
And exhaust pipe 223 is connected to and extracts between space 222 and outlet portion 13；Power supply unit 23 is rechargeable battery, and electrical connection pumping is single
Member 22, electric power needed for power supply unit 23 provides 221 actuation of fan of pumping cells 22；It starts switch unit 24 and is electrically connected electricity
Source unit 23, and the top of ontology 10, bottom wherein one side are exposed to, as offer user's hand started by press switch unit
24, to control the power supply function of power supply unit 23, and the running effect of opening/closing fan 221 indirectly；In addition to this, list is started switch
The running speed that user adjusts fan 221 can also be provided in member 24, and then controls the air force of output exhaust pipe 223.
Wherein, filter assemblies 20 can be changed setting according to the volume and kenel of ontology 10；Please refer to Fig. 2, in
In the utility model first embodiment, it is rectangular-shaped that flat length is presented in the overall appearance of ontology 10, and ontology 10 is clamped on mask 1,
And the filter element 21 and pumping cells 22 of filter assemblies 20 can be respectively further from the side that mask 1 is set to connecting structure 11, and will
Power supply unit 23 is set in the first folder portion 111, and is located relatively at the outside 2 of mask 1；Please refer to Fig. 3, the utility model
Two embodiments are that power supply unit 23 converts the side for being connected to pumping cells 22 with aforementioned first embodiment difference, make power supply
Unit 23 is located remotely from each other with filter element 21, at this time the whole side that connecting structure 11 is set to far from mask 1 of filter assemblies 20；Please
Cooperation is refering to Fig. 4, and the utility model 3rd embodiment is with aforementioned first embodiment difference, filter element 21 and pumping cells
22 convert in the first folder portion 111 respectively, and are located relatively at the outside 2 of mask 1, and power supply unit 23 is set far from mask 1
In the side of connecting structure 11；In this way, which smooth frivolous moulding is integrally presented in 10 appearance of ontology, with easy to carry using family
Purpose, and the effect of mask 1 can be clamped at any time.
Referring to Fig. 5, the utility model fourth embodiment is with aforementioned first embodiment difference, the entirety of ontology 10 is outer
It is rectangular-shaped to see presentation, and the filter element 21 of filter assemblies 20, pumping cells 22 and power supply unit 23 are sequentially arranged at the first folder
In portion 111, and the corresponding outside 2 for being located at mask 1；In this way, which the overall volume of ontology 10 can be further reduced, has and be convenient for
User is capable of the effect of further light carrying.
It please cooperate Fig. 1, Fig. 2 and Fig. 6, when the practical starting filter assemblies 20 of the utility model carry out pumping filtering, first will
Filter assemblies 20 are clamped on the periphery 4 of mask 1, and air inlet portion 12 is towards the outside of mask 12, and work as the fan of pumping cells 22
221 when starting turning 2 air of outside for extracting mask 1, bypasses air through air inlet portion 12 and enters in ontology 10, and sequentially flows through the
One filter core 211 and the second filter core 212, wherein the first filter core 211 and the second filter core 212 can filter absorption air dust and
Suspended particulates, with the impurity of dual net air filtering；And filtered air can be penetrated to be sucked into and be extracted in space 222, then again
Outlet portion 13 is directed to by exhaust pipe 223 and is blown out to inner space 5；Whereby, user can be directly in inner space 5
Air after breath provides user and has a breath of fresh air to reduce dust and suspended particulates in sucking outside air,
And then lifting body in the respiratory apparatus health such as lung or bronchus effect.
Furthermore in the environment of scorching temperature, the inner space 5 of mask 1 can generate high temperature, sultry, at this time filter assemblies
20 can blow out filtered air in inner space 5, can further decrease the temperature of inner space 5, dress mask 1 to be promoted
Comfort, and achieve the purpose that heat dissipation；In addition to this, the utility model more further can distinctly remove replacement filter element 21
And power supply unit 23, for example, when 23 electric power deficiency of power supply unit, ontology 10 can be separated mask 1 by user, and be passed through
Manually or ontology 10 is dismantled using tool, i.e., power supply unit 23 that is dismountable and replacing electric power abundance；Or mistake
When filter unit 21 reduces filter effect by long-term use, user can also use filtering list of the above-mentioned disassembly means more to renew
Member 21, in this way, which ontology 10 can achieve the purpose that repetitive cycling filters.
In conclusion the utility model have effects that it is following:
1. the utility model has the effect of being convenient for carrying, and ontology 10 can be clamped on by user with separating formula at any time
The periphery 4 of mask 1, enables the air in peace and quiet 1 outside 2 of filter face mask of filter assemblies 20, and filtered air is discharged
To inner space 5, user is provided and is had a breath of fresh air, so in lifting body the respiratory apparatus such as lung or bronchus health effect
Fruit.
2. filter assemblies 20 can blow out filtered air in inner space 5, the temperature of inner space 5 can be further decreased
Degree to promote the comfort of wearing mask 1, and achievees the purpose that heat dissipation.
3. 10 appearance of ontology is integrally frivolous, and filter assemblies 20 can be changed according to the volume and kenel of ontology 10 and set
It sets, with the portable purpose of sharp user, user can elasticity be clamped on mask 1 immediately by connecting structure 11, and
The clip tooth 114 of connecting structure 11 also can reach the purpose for preventing ontology 10 from falling off mask 1, can be consolidated and quickly with promoting ontology 10
The effect of being installed on mask 1.
Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, fall within the protection scope of the utility model.
Claims (10)
1. a kind of portable filter-fan unit, is installed in detachable type a mask, have between user on the inside of the mask
There is an inner space, which is characterized in that the portable filter-fan unit includes:
One ontology has a connecting structure, which is incorporated into the periphery of the mask by the connecting structure detachable type,
And the ontology is equipped with an air inlet portion, an outlet portion and an accommodating space, which is set to the outside of the mask, which sets
In the mask inside and be connected to the inner space, which is connected to the air inlet portion and the outlet portion；And
One filter assemblies are installed in the accommodating space of the ontology, and are set between the air inlet portion and the outlet portion, the filter assemblies
Equipped with a filter element and a pumping cells, the side of the filter element is set to the air inlet portion, and the other side of the filter element is set
There are the pumping cells, be located at the filter element between the air inlet portion and the pumping cells, which extracts the outer of the mask
Side air, and the ontology is entered by the air inlet portion and flows through the filter element, and filtered air is arranged by the outlet portion
Out to the inner space.
2. portable filter-fan unit as described in claim 1, which is characterized in that the connecting structure elasticity is clamped on the mouth
The periphery of cover.
3. portable filter-fan unit as claimed in claim 2, which is characterized in that the connecting structure includes one first folder
Portion, one second folder portion and a clamping opening, the clamping opening are set between first folder portion and second folder portion, first folder portion and second folder
Portion is held on the inside and outside two sides of the mask.
4. portable filter-fan unit as claimed in claim 3, which is characterized in that the first folder portion projection in the clamping opening
There are multiple clip tooths, these clip tooths are connected to the outside of the mask.
5. portable filter-fan unit as described in claim 1, which is characterized in that the pumping cells are equipped with one and extract space
And an exhaust pipe, which is set to the side of the pumping cells, and the exhaust pipe is connected to the extraction space and the outlet portion
Between.
6. portable filter-fan unit as described in claim 1, which is characterized in that the filter assemblies are set to far from the mask
The side of the connecting structure.
7. portable filter-fan unit as claimed in claim 3, which is characterized in that the filter assemblies are set to the connecting structure
In, and it is located at the outside of the mask.
8. portable filter-fan unit as claimed in claim 1 or 5, which is characterized in that the pumping cells are mini-fan
Or air blower, and the filter assemblies further include the power supply unit for being electrically connected the pumping cells, which provides the pumping
Electric power needed for cell operation.
9. portable filter-fan unit as described in claim 1, which is characterized in that the filter element is equipped with one first filter core
And one second filter core, the side of first filter core are set to the air inlet portion, second filter core far from the air inlet portion be connected to this first
The filter core other side, and the pumping cells are connected to second filter core, which is set to the pumping cells and first filter core
Between.
10. portable filter-fan unit as claimed in claim 9, which is characterized in that the thickness of second filter core is greater than should
The thickness of first filter core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821344955.9U CN209253975U (en) | 2018-08-21 | 2018-08-21 | A kind of portable filter-fan unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821344955.9U CN209253975U (en) | 2018-08-21 | 2018-08-21 | A kind of portable filter-fan unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209253975U true CN209253975U (en) | 2019-08-16 |
Family
ID=67557659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821344955.9U Expired - Fee Related CN209253975U (en) | 2018-08-21 | 2018-08-21 | A kind of portable filter-fan unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209253975U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110841209A (en) * | 2018-08-21 | 2020-02-28 | 捷科罗股份有限公司 | Portable filtering and ventilating device |
| KR102137670B1 (en) * | 2019-09-27 | 2020-07-27 | 윤재웅 | Portable respiratory support apparatus |
| KR20210033405A (en) * | 2019-12-24 | 2021-03-26 | 윤재웅 | Portable respiratory support apparatus |
| WO2021133093A1 (en) * | 2019-12-24 | 2021-07-01 | 윤재웅 | Portable respiration assistance device |
| KR102303186B1 (en) * | 2020-08-20 | 2021-09-16 | (주)패스넷 | Removable infection prevention air exhaust device for mask |
| KR20210123049A (en) * | 2020-04-02 | 2021-10-13 | 고재정 | Clip type air exhaust apparatus and mask having the same |
| KR20210002931U (en) * | 2020-06-22 | 2021-12-29 | 김진향 | Air cleaner which detachable to mask |
-
2018
- 2018-08-21 CN CN201821344955.9U patent/CN209253975U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110841209A (en) * | 2018-08-21 | 2020-02-28 | 捷科罗股份有限公司 | Portable filtering and ventilating device |
| CN110841209B (en) * | 2018-08-21 | 2021-11-16 | 捷科罗股份有限公司 | Portable filtering and ventilating device |
| KR102137670B1 (en) * | 2019-09-27 | 2020-07-27 | 윤재웅 | Portable respiratory support apparatus |
| KR20210033405A (en) * | 2019-12-24 | 2021-03-26 | 윤재웅 | Portable respiratory support apparatus |
| WO2021133093A1 (en) * | 2019-12-24 | 2021-07-01 | 윤재웅 | Portable respiration assistance device |
| KR102306047B1 (en) * | 2019-12-24 | 2021-09-28 | 윤재웅 | Portable respiratory support apparatus |
| KR20210123049A (en) * | 2020-04-02 | 2021-10-13 | 고재정 | Clip type air exhaust apparatus and mask having the same |
| KR102393006B1 (en) * | 2020-04-02 | 2022-05-02 | 고재정 | Clip type air exhaust apparatus and mask having the same |
| KR20210002931U (en) * | 2020-06-22 | 2021-12-29 | 김진향 | Air cleaner which detachable to mask |
| KR200496338Y1 (en) * | 2020-06-22 | 2023-01-06 | 주식회사 경진케어 | Air cleaner which detachable to mask |
| KR102303186B1 (en) * | 2020-08-20 | 2021-09-16 | (주)패스넷 | Removable infection prevention air exhaust device for mask |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209253975U (en) | A kind of portable filter-fan unit | |
| CN111163842B (en) | Multifunctional multipurpose breathing mask | |
| CN204219635U (en) | A kind of main machine structure of Portable air purifier | |
| EP3270070A1 (en) | Portable air purifier | |
| CN205639076U (en) | Fan reaches electronic gauze mask including this fan | |
| US8757154B2 (en) | Air purifier apparatus | |
| CN104436460A (en) | Wearable air purifying device and air purifying method | |
| CN106828040A (en) | A kind of efficient vehicular air purifier | |
| CN205182026U (en) | Electronic air supply breathing machine | |
| CN206347659U (en) | A kind of portable air purifier | |
| CN108853824A (en) | A kind of air-purifying respirator air inlet method and the respirator with this method | |
| CN205549270U (en) | Wearable head -mounted air purifier | |
| CN110841209B (en) | Portable filtering and ventilating device | |
| CN205306064U (en) | Electronic gauze mask of antifog haze of intelligence | |
| CN202207408U (en) | Breathe aid type dust mask | |
| CN201799027U (en) | Dust-filtering air-supplying type dust mask | |
| CN205434738U (en) | Novel prevent haze gauze mask | |
| CN105769107B (en) | A kind of hand-held collection transmitting apparatus and its application | |
| CN212260560U (en) | Novel fan ventilation mask | |
| CN208436275U (en) | A kind of portable air-purifying breathing mask | |
| CN204106887U (en) | A kind of passive mouth mask of supplying gas | |
| CN207252849U (en) | A kind of filter face mask | |
| CN105688346A (en) | Intelligent purification mask | |
| CN202739914U (en) | Dust collector | |
| CN105641820A (en) | Portable air purification kit adopting active air feeding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |